26 to 50 of 58 Refactoring Jobs in the UK

DBA - SQL Server

Hiring Organisation
VIQU IT Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£45,000 - £55,000 per annum
Server DBA or similar role. Strong SQL Server installation, configuration, maintenance, and security understanding. Solid T-SQL skills for writing and refactoring queries. Experience with performance tuning techniques. Exposure to Azure SQL administration and monitoring. Experience supporting development teams with SQL-related needs. Experience with SQL-to-Azure migration projects. ...

COBOL Software Engineer

Hiring Organisation
DWP Digital
Location
Manchester, North West, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£55,000
responsible for ensuring they remain stable, secure and resilient. You'll work within our delivery teams, helping to lead refactoring work across some of our major COBOL applications, modernising how they operate today and preparing them for the strategic technology shift DWP is undertaking over the next decade. This role ...

COBOL Software Engineer

Hiring Organisation
DWP Digital
Location
Sheffield, South Yorkshire, Yorkshire, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£55,000
responsible for ensuring they remain stable, secure and resilient. You'll work within our delivery teams, helping to lead refactoring work across some of our major COBOL applications, modernising how they operate today and preparing them for the strategic technology shift DWP is undertaking over the next decade. This role ...

COBOL Software Engineer

Hiring Organisation
DWP Digital
Location
Birmingham, West Midlands, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£55,000
responsible for ensuring they remain stable, secure and resilient. You'll work within our delivery teams, helping to lead refactoring work across some of our major COBOL applications, modernising how they operate today and preparing them for the strategic technology shift DWP is undertaking over the next decade. This role ...

COBOL Software Engineer

Hiring Organisation
DWP Digital
Location
Newcastle Upon Tyne, Tyne and Wear, North East, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£55,000
responsible for ensuring they remain stable, secure and resilient. You'll work within our delivery teams, helping to lead refactoring work across some of our major COBOL applications, modernising how they operate today and preparing them for the strategic technology shift DWP is undertaking over the next decade. This role ...

Platform Engineer - Active SC, Oracle, Java

Hiring Organisation
Hays Technology
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £550/day Up to £550 per day - Inside IR35
sector. Active SC Clearance. Experience maintaining and troubleshooting legacy applications/infrastructure, including Oracle, WebLogic, and Elasticsearch. Building and supporting CI/CD pipelines, refactoring code, and developing automated tests. Strong knowledge of Nginx, Apache Tomcat/HTTP, and ETL processes. Installing and supporting Oracle 11, including Partitioning, RAC, RMAN ...

Principal Software Engineer

Hiring Organisation
Fruition Group
Location
City of London, London, United Kingdom
Employment Type
Permanent
Responsibilities: Architect and implement highly available, multi-region infrastructure services Define resilience patterns across services (failover, circuit breaking, back-pressure, etc.) Lead large-scale refactoring or reliability improvement initiatives Establish best practices in incident response, observability, and SLO management Drive adoption of modern cloud-native and GitOps practices Mentor senior ...

Lead Software Engineer - Platform

Hiring Organisation
Fruition Group
Location
City of London, London, United Kingdom
Employment Type
Permanent
Responsibilities: Architect and implement highly available, multi-region infrastructure services Define resilience patterns across services (failover, circuit breaking, back-pressure, etc.) Lead large-scale refactoring or reliability improvement initiatives Establish best practices in incident response, observability, and SLO management Drive adoption of modern cloud-native and GitOps practices Mentor senior ...

SQL Server DBA

Hiring Organisation
VIQU IT Recruitment
Location
Birmingham, West Midlands, United Kingdom
Employment Type
Permanent
Salary
£55,000
while driving improvements in database performance and scalability. Key Responsibilities SQL Server administration across production and non-production environments Performance tuning, optimisation, and query refactoring Writing efficient T-SQL and analysing execution plans Supporting and collaborating with developers to improve database performance Contributing to Azure migration and cloud optimisation initiatives ...

Senior Software Engineer – Systems Improvement & Scale

Hiring Organisation
Car Planet
Location
Enfield, England, United Kingdom
Proven experience working on live production systems ✔️ Full-stack JavaScript/TypeScript (Next.js, Node, APIs, databases) ✔️ Python experience (scripting, services, tooling, data processing) ✔️ Strong refactoring and system-improvement skills ✔️ Comfortable in fast-moving, imperfect environments ✔️ Able to work autonomously with strong judgement on priorities & risk Highly Desirable ⭐ C#/.NET ...

Principal Data Engineer

Hiring Organisation
Halian Technology Limited
Location
South East London, London, United Kingdom
Employment Type
Permanent
leading role in that journey. This isnt a role where you inherit a polished environment. Its an opportunity to shape, modernise, and influence from refactoring legacy pipelines to building best-in-class data products using tools like Databricks, Azure, and GCP. Youll operate as the technical authority within the data ...

Senior GCP Engineer

Hiring Organisation
Charles Simon Associates Ltd
Location
Manchester, Lancashire, England, United Kingdom
Employment Type
Full-Time
Salary
£85,000 - £95,000 per annum
tooling across a huge GCP estate. What You’ll Be Doing: Engineering GCP infrastructure products using Terraform & Terraform Cloud. Designing reusable IaC modules, refactoring legacy configs, improving state management. Building automation, tooling and workflows in Python. Developing secure, scalable GCP landing zones with org policies, policy-as-code (OPA/ ...

Senior GCP DevOps Engineer

Hiring Organisation
Charles Simon Associates Ltd
Location
Leeds, West Yorkshire, England, United Kingdom
Employment Type
Full-Time
Salary
£85,000 - £95,000 per annum
tooling across a huge GCP estate. What You’ll Be Doing: Engineering GCP infrastructure products using Terraform & Terraform Cloud. Designing reusable IaC modules, refactoring legacy configs, improving state management. Building automation, tooling and workflows in Python. Developing secure, scalable GCP landing zones with org policies, policy-as-code (OPA/ ...

Salesforce Lead Developer

Hiring Organisation
Cpl Life Sciences
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£350 - £390 per day
Have Experience working in regulated environments (financial services or government). Additional Salesforce certifications beyond core requirements. Experience supporting data model remediation or complex refactoring initiatives. 5. Qualifications Salesforce Certifications (Essential): Salesforce Administrator Platform App Builder Platform Developer I Platform Developer II Trailhead (to be maintained during assignment): Advanced Apex ...

Lansa Developer

Hiring Organisation
Proactive Appointments
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 300 - 500 Daily
business operations. Key Responsibilities Support the migration and upgrade of the existing ERP system using LANSA technologies Analyse existing applications and assist with refactoring or redeveloping components where required Develop, test, and implement enhancements within the ERP environment Work with technical teams to troubleshoot issues during the migration process Ensure ...

PHP Developer

Hiring Organisation
The Citation Group
Location
Bracknell, England, United Kingdom
Future of HR Tech 🚀 What You'll Do: Design and develop high-performance, scalable PHP applications Modernize and maintain legacy PHP codebases with continuous refactoring approaches Deploy production code with confidence using terraform and GitHub actions Collaborate cross-functionally with engineers, UX designers, and our product team Contribute to architectural ...

BI Analyst

Hiring Organisation
Tenth Revolution Group
Location
Glasgow, Lanarkshire, Scotland, United Kingdom
Employment Type
Full-Time
Salary
£35,000 - £40,000 per annum
moderate SQL, mainly for report building and querying datasets. Translating complex insights into simple, clear messages for non-technical stakeholders, including senior managers. Refactoring old legacy reports and improving existing reporting assets. Supporting the design of new BI and data architecture. Helping the business transition away from older tools (including ...

Frontend Developer (Ecommerce / Headless Shopify)

Hiring Organisation
Imaginaire - Shopify Plus Agency
Location
United Kingdom
should be comfortable delivering high-quality frontend work with clear guidance and code review. We actively use AI-assisted workflows across development (for refactoring, documentation, optimisation and acceleration), and we’re looking for someone comfortable working in this way. What You’ll Be Working On Building custom Shopify storefronts (native ...

Senior Software Engineer

Hiring Organisation
Prism Digital
Location
City of London, London, United Kingdom
Negotiables: Strong software engineering experience (C# preferred but Java, or C++ considered) Strong SQL/relational database experience Careful approach to testing and safe refactoring Clear, concise technical and verbal communication Have previously worked for a Financial Service organisation or for a software vendor that’s utilised within the Financial … senior leadership for every change Nice to Haves Exposure to futures, options, or crypto markets Experience improving legacy or difficult-to-test systems Experience refactoring large codebases Exposure to Python or DevOps tooling Experience in smaller, high-ownership engineering teams Why Join You will join a small, engineering-led systematic ...

Analytics Engineer - Looker

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£500 - £550 per day
elegant data solutions. Focus on usability, documentation, and data clarity. Comfortable working independently in a dynamic, fast-changing environment. DESIRABLE SKILLS Experience rebuilding or refactoring a Looker instance from scratch. Familiarity with BigQuery performance tuning and cost optimization. Experience scaling analytics across a cross-functional organisation HOW TO APPLY Please ...

Analytics Engineer (DBT)

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£450 - £550 per day
elegant data solutions. Focus on usability, documentation, and data clarity. Comfortable working independently in a dynamic, fast-changing environment. DESIRABLE SKILLS Experience rebuilding or refactoring a Looker instance from scratch. Familiarity with Snowflake performance tuning and cost optimization. Experience scaling analytics across a cross-functional organisation HOW TO APPLY Please ...

Backend Engineer

Hiring Organisation
Skilliantech Ltd
Location
London, United Kingdom
Employment Type
Contract, Work From Home
Responsibilities: Develop and maintain backend services using Java, Spring Boot, AWS Build and optimize REST and GraphQL APIs Ensure code quality through testing, refactoring, and best practices Own services end-to-end, including deployment, monitoring, and production support Handle production incidents, perform root cause analysis, and improve system reliability Contribute ...

Salesforce Technical Architect

Hiring Organisation
Cpl
Location
City of London, London, United Kingdom
data model design Strong architectural knowledge of: Salesforce platform architecture Service Cloud and Experience Cloud Security, identity, and access controls Data model remediation and refactoring Proven ability to produce clear, governance‐ready architecture documentation. Strong communication skills, able to explain complex technical concepts to senior and non‐technical stakeholders. Experience ...

Senior Software Engineer

Hiring Organisation
Hyperact
Location
Manchester, England, United Kingdom
practices, including XP, TDD, CI/CD, trunk-based development, and Infrastructure as Code. Lead by example in engineering excellence through pairing, code reviews, refactoring, and continuous improvement of code quality and system design. Contribute to architectural decision-making, balancing scalability, performance, security, and maintainability against business priorities. Foster strong … Code (e.g., Terraform, CloudFormation) and automated CI/CD pipelines. Strong grounding in engineering disciplines, including Test-Driven Development (TDD), automated testing strategies, refactoring, and continuous delivery. Experience designing APIs and event-driven systems, with an understanding of scalability, resilience, observability, and security considerations. Solid understanding of data modelling ...

Software Engineer

Hiring Organisation
KO2 Embedded Recruitment Solutions LTD
Location
York, North Yorkshire, Yorkshire, United Kingdom
Employment Type
Permanent
Salary
£45,000
from requirements and architecture through to implementation, testing, and support. Key responsibilities include: Designing and developing new features in a C# desktop application Maintaining, refactoring, and improving an existing codebase Working with data visualisation, analysis, and user-facing functionality Supporting customers and troubleshooting software issues Producing clear technical documentation About ...